Here are a few options, depending on where you want the focus to be:
Option 1 (Direct and formal):
DICT Criticizes YouTube for Lack of Cooperation on Government Safety and Misinformation Initiatives
Option 2 (Concise):
DICT Urges Greater YouTube Collaboration Regarding Online Safety and Misinformation Efforts
Option 3 (Focus on the conflict):
DICT Challenges YouTube’s Lack of Engagement on National Safety and Misinformation Policy